A Watershed Academy Web exercise in stream restoration principles

Interest in restoring stream corridors is growing rapidly. More and
more, restoration experts are moving away from the heavily engineered,
concrete-and-channelization methods used for controlling streams in the past
and implementing less intrusive methods that use natural materials and are
designed for the way streams naturally act—often with better stability and
less ecological damage.

Natural events such as floods, or human activities such as major changes in
land use, can make stream corridor restoration necessary. The following two situations are about
two sites along a stream partially damaged by flooding in
1996. One site underwent serious erosion, while the other site was changed, but
remained relatively unharmed. Stream bank repairs have started at the damaged
site, but which of the visible activities are right or wrong choices from a
stream corridor restoration perspective? Your challenge is to examine both photos, form your opinions, and click on those areas of each corresponding photo key where you feel something appears right or wrong.